by Peter Wayner
, Mimic Functions are an application of context-free grammars
to the field of Steganography
. Using Mimic Functions one can hide information
The power of Mimic Functions over other Steganographic techniques
is that the form that the hidden message takes is limited only by the imagination and resourcefulness of the grammar composer (see spammimic
for one possible implementation). Thus, one is not limited to the least significant bits
of graphics, sound or text files (all techniques which can be relatively easily analyzed
). Another way Mimic Functions resist steganalysis
is by having the hidden message take on the statistical properties of the innocuous source.
Mimic Functions are one of the most underrated
inventions in the field of Steganography.